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1 ' <br />' 23 December 2003 <br /> • AGE-NC Project No 95-0104 <br />' Page 3 of 3 <br /> additives were not detected at or above laboratory reporting limits in the ground water samples <br /> I collected from the site Analytical results of the ground water samples are summarized In Table 2 <br /> The laboratory reports MAI Work Order Number 0306497)and chain-of-custody form are presented <br /> In Appendix B <br /> I <br /> 4.0. DISCUSSION AND CONCLUSIONS <br /> IBased on data collected during the June 2003 sampling event, AGE concludes <br /> • The ground water flow direction on 18 June 2003 was inferred to be towards the northwest <br /> under an average gradient of 0 040 feet/feet <br />' • 1,2-DCA was detected In the water samples collected from MW-1,MW-5,MW-6 and VW-1 <br /> at concentrations ranging from 1 2µg/l(MW-6)to 17µg/1(MW-5) TPH-g,BTEX and other <br /> fuel additives were not detected at or above laboratory reporting limits in the ground water <br /> samples collected from the site <br /> • Concentrations of 1,2-DCA have remained stable In samples from wells MW-1, MW-5, <br /> . MW-6 and VW-1 Figure 4 illustrates the approximate extent of 1,2-DCA-impacted ground <br /> water The lateral extent of 1,2-DCA impacted ground water has been generally defined The <br /> vertical extent has been defined <br /> 5.0. RECOMMENDATIONS <br /> I <br /> Based on the findings of this investigation, AGE recommends the site be considered for closure A <br /> closure summary report should be prepared. <br /> 6.0. LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities The findings were based upon <br /> analytical results provided by an independent laboratory Evaluations of the geologlc/hydrogeologlc <br /> conditions at the site for the purpose of this investigation are made from a limited number of <br /> I available data points (I e ground water samples) and subsurface conditions may vary away from <br /> these data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained In this report <br /> I <br /> Advanced GeoEnvlronmental,Inc <br /> I <br />